Simulations & Tools
In this section, we present simulation outputs from the GCC group together with software tools developed by group members to analyze and interpret those simulations.
Cosmological codes
MASCLET
MASCLET is a cosmological multidimensional hydrodynamic and N-body code based on an adaptive mesh refinement scheme. Its hydro solver uses modern high-resolution shock-capturing techniques, while the N-body component follows the particle-mesh method. It was designed for cosmological applications and tested on strong shocks, gradients, gravity, and the Santa Barbara cluster benchmark.
The code has been continuously updated, improved, and refined since its original release, and it now also includes magnetohydrodynamic capabilities to follow magnetic fields in cosmological environments.
Developed by: Vicent Quilis.
Reference paper: https://academic.oup.com/mnras/article/352/4/1426/1077772
Analysis tools
Software developed by GCC members to analyze numerical simulations.
ASOHF (Adaptive Spherical Overdensity Halo Finder)
ASOHF is an adaptive spherical-overdensity halo finder. It identifies halo candidates over grid levels and then refines them with particle information (recentering, overdensity-based radius estimation, and halo-property computation) to build halo catalogues and substructure information.
TO BE IMPLEMENTED.
Developed by: Susana Planelles Mira, Vicent Quilis Quilis and David Vallés Pérez.
Github repository: https://github.com/dvallesp/ASOHF
AVISM (Algorithm for Void Identification in coSMology)
AVISM is a cosmological void finder. It interpolates particle or grid data into density and velocity-divergence fields on a uniform grid, selects candidate void centers with physical thresholds, expands them until edge criteria are met, and merges overlapping cubes to produce the final void catalogue (including hierarchical voids-in-voids levels).
Developed by: Òscar Monllor-Berbegal, David Vallés-Pérez, Susana Planelles Mira and Vicent Quilis Quilis.
Github repository: https://github.com/oscarmonllor99/AVISM
Vortex
Vortex implements Helmholtz-Hodge decomposition for particle-based, moving-mesh or meshless simulations. It reads simulation particle data, builds/interpolates velocity fields on grids (with KD-tree based particle handling), and decomposes the flow into compressive and solenoidal components, outputting both gridded and particle-wise products.
Developed by: David Vallés-Pérez, Susana Planelles Mira and Vicent Quilis Quilis .
Github repository: https://github.com/dvallesp/vortex-p